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Device and method for measuring spatial angular resolution accuracy of virtual sound source generating equipment

A technology of virtual sound source and spatial angle, applied in directions such as electrical components, which can solve problems such as poor measurement accuracy of orientation sensors

Active Publication Date: 2020-12-08
SHANGHAI AVIATION ELECTRIC
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  • Abstract
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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of poor measurement accuracy of the azimuth sensor in the prior art, and provide a new type of device and method for measuring the spatial angular resolution accuracy of virtual sound source generating equipment

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  • Device and method for measuring spatial angular resolution accuracy of virtual sound source generating equipment
  • Device and method for measuring spatial angular resolution accuracy of virtual sound source generating equipment
  • Device and method for measuring spatial angular resolution accuracy of virtual sound source generating equipment

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Embodiment Construction

[0028] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0029] Such as figure 2 As shown, a device for compensating the accuracy of 3D voice positioning measurement, including: a measuring azimuth transmitter fixing device 1, a swivel chair mechanism 2, a calibration scale rod 3, an azimuth indicating device 4, and a listener 5 . Each listener 5 needs to use the device of the present invention to perform measurement accuracy compensation work before formal measurement. Fix the calibration scale rod 3 in the direction of the horizontal projection 80cm from the overall center (0°, 0°), the listener 5 sits on the swivel chair mechanism 2, and adjusts the upgrading device of the swivel chair mechanism 2 so that the listener 5 The distance between the center of the head and the ground is 1.28m, and the distance from the shoulders of the listener to the ground should be recorded (different for each listener)....

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Abstract

The invention relates to a space angle resolution measurement accuracy compensation device used for a virtual sound source generating device. The space angle resolution measurement accuracy compensation device comprises a virtual sound source generating device which defines an appointed spherical coordinate frame; a revolving chair mechanism which is located in the virtual sound source generating device and comprises a lifting device; and a calibration scale rod which is provided with scale marks obviously identifiable by naked eyes and a standard zero. The Space angle resolution measurement accuracy compensation device and method used for the virtual sound source generating device have the advantages that: by adopting the device and the compensation method, the measurement accuracy of the virtual sound source space angle resolution measurement device is greatly improved, the measurement error of a measurement system is reduced, the measured data are therefore more approximate to a theoretical measurement result and evaluation for the resolution of the virtual sound source generating device can be possible; and through the method, the measurement accuracy of the measurement device which adopts an electromagnetic sensor is improved by more than 5 degrees, and a foundation for the application of a virtual sound source technology on an onboard device is laid.

Description

technical field [0001] The invention relates to the field of measuring the angular resolution of virtual auditory space, in particular to a device and method for measuring the accuracy of spatial angular resolution of virtual sound source generating equipment. Background technique [0002] The human auditory system can locate the sound source of the sound through the propagation of the sound, and judge its spatial orientation. At present, the virtual sound source generation equipment utilizes the positioning ability of the auditory system to replay a virtual sound source similar to the real sound, so that the virtual sound source played through the headset has spatial information, so as to achieve the goal of "listening and identifying the position". However, how to evaluate the spatial angular resolution of the virtual sound source simulated by the virtual sound source generating device has always been a difficult problem in this field. During the measurement process, the ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R29/00
CPCH04R29/00
Inventor 马立超陈慧李春晖
Owner SHANGHAI AVIATION ELECTRIC
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